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, D. SHORTSLEEVE. MAGHINE FOR ORNAMBNT ING STONE.

Patented July 4, 1882.

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(No Model.) 6 Sheets-Sheet 3. D. SHORTSLBEVE. MACHINE FOR ORfi'A'MENTINGSTONE.

P atented July 4, 1882.

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6 Sheets-Sheet 4. v

(No Model.)

D. SHORTSLEEVE. MACHINE FOR ORNAMBNTING STONE.

Patented, July 4, 1882.

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MACHINE FOR ORNAMENTING STONE.

No. 260,424. I Patented July 4, 1882.

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N. PETERS. Phokwumngnphor. Wafllinlion. 'Lc,

UNITED STATES PATENT OFFICE.

DAVID SHORTSLEEVE, OF RUTLAND, VERMONT, ASSIGNOR OF ONE-HALF TO SIDNEY\V. ROWELL, OF SAME PLACE.

EMACHINE F OR ORNAMENTING STONE.

SPECIFICATION forming part of Letters Patent No. 260,424, dated July 4,1882.

Applicationfiled February 6,1882. (No model.) I

To all whom it may concern:

Be it known that I, DAVID SHoR'rsLEEvE, a citizen of the United States,residing at Rutland, in the county of Rutland and State of Vermont, haveinvented a new and useful Machine for Ornamentin g Stone, of which thefollowing. is a specification.

My invention relates to a machine for shaping and finishing marble,slate, or other stonelike substances with either straight or serpentineoutlines or surfaces; also for mortising, drilling, and countersinkingsuch stone; also for ornamentin g and finishing round, oval. or otherirregular-curved shapes in stone. The machine may be made single ordouble, the

one represented and described herein being double-that is, havingshaping-cutters and operating and clamping mechanisms on either side ofthe center of the frame. The machine, when used for other than round,oval, or like irregular-curved orn am entations and finishing, employs areciprocating stone-supporting bed; and when used for round, oval, orother like irregular-curved work employs a revolving stone-supportingbed. r

In the accompanying drawings, Figure l is a front elevation of a stoneshaping or molding and finishing machine made double, as abovementioned, and illustrating the manner of employing the reciprocatingtable of the machine for supporting the stone, in connection withclamps, mechanism for operating the revolving cutter-bars and cuttersand reciprocating the stone-supporting table. Fig. 2is a plan view ofthe same. Fig. 3 is a front elevation of the same machine, illustratingthe manner of employing a rotary stone-supportin g table. Fig. 4 is aplan view of the machine shown in Fig. 3, without the clamps seen in thepreceding figure, and showing the cutteroperating'mechanism inhorizontal section in the line av 00 of Fig. 3. Fig. 5 is a bottom viewof the machine, portions being brokenaway to expose the mechanism. Fig.6 is a-vertical cross-section of the machine in the line 3 y of Fig. 5.Fig. 7 is a central section of the connection between the driving-pulleyand the revolving cntter=bar in the line 2 z of Fig. 2. Fig. 8 is avertical central section of the said driving-pulley intheline w a," ofFig. 2. Fig. 9 is a vertical central section of one of the reout theseveral views.

In the drawings, A represents a suitable platform or frame, provided atits top surface with longitudinal dovetail-shaped guides at, to which'areciprocating table, A, is fitted. This table A is provided withalongitudinal rack,

a, into which a pinion, b, upon a vertical shaft, B, gears, and therebygives motion to the same. The shaft B, which is hung between suitablebearin gs, b W, on the frame A, is provided with a bevel-wheel, 12 intowhich a bevelwheel, 0, upon a shaft, 0, gears, and thus gives motion tothe wheels-b and b 4 The shaft 0 is suitably hung in the frame A, and itextends beyond the front of the frame A, where it is provided'with ahandwheel, 0, having a handle, 0 for the convenience of the operator.The wheel I) may also be connected with another bevel-wheel, 0 se--cured to a' shaft, 0, standing at an angle to the shaft 0, and beingsuitably hung in the frame A. The wheel 0 fits loosely around the shaft0, and by means of an ordinary tongue and groove fit is adapted to slidelongitudinally upon the shaft 0 and partake of its rotary motion.

The hub of the wheel 0 is provided with an annular groove, 0 into whichthe prongs of a forked lever, 0 fit, and whereby the wheel 0 may bemoved into gear with the wheel I) or out of gear therewith. The shaft 0extends beyond the side of the frame, and is provided with a pulley, 0which receives motion through an ordinary belt from a line or countershaft. By moving the wheel 0? into gear with the wheel b the table A ismoved by the power of the line or other shafting of the shop.

By moving the wheel 0 out of gear with the V wheel 5 the table A can bemoved by hand by means of the handle 0 of the wheel 0.

The table A is provided withsuitable T- grooves, a, into which the headd of a bolt, (1, is fitted, by which bolt a clamp, 1), may be secured tothe table. This clamp consists of a vertical body, (1 through which thebolt d passes, and a horizontal arm, at, which extends over the stone tobe clamped down upon the table.

The end of the arm 01 is provided. with a clamp-screw, d, and the foot(I of this clampscrew, which is spherical, has a clamp-washer, (Zloosely attached to it, so that it may easily level or adapt itself tohorizontal or inclined positions of the stone to be clamped.

At both sides of the table A the frame A is provided with two uprightguidesfl l, united at top by a horizontal bar, E. The guides E haveT-ribs (2, upon which slides E are fitted and are lowered and raised bymeans of screws Fand nutsf. Thenutsfare fastened by means of screws f tothe slides E and the screwsF arehung between theprojecting ends of thebar Eand the frameA,and their upper ends are secured to the bar E, bymeans of nuts 0 and washers a above the bar, and by collars 0" be lowthe same.

The lower ends of the scrcwsFareprovided with bevel-wheels f into whichgear bevel wheels 9 of horizontal shafts G. The shaft G is suitably hungin the frame A and extending beyond the front of the same is providedwith a hand-wheel, g 9 The screws 1* having one a'right'hand and theother a left-hand thread, both of the same pitch, the turning of thehand-wheel y will cause the two slides E to move up or downsimultaneously and with the same speed.

The slides E are provided with horizontal dovetail guides 0*, betweenwhich a hollow cross-head, H, is held by means of horizontal dovetailribs it, formed on the same, and thus the cross-head, besides partakingof the vertical motion of the slides E may also be horizontally moved insaid slides. This horizontal movement is efl'ected by means of a screw,I, which passes through a'nut, 0 upon the slide E and has its front endembedded in the end portion, h,of the cross-head, to which itislongitudinally secured by means ofa collar, 1', at

' the inside, and a hand-wheel, i, at the outside,

of the same.

The cross-head H (see Figset andlO) is provided with dovetail ribs If,to which a faceplate, J, is fitted, and to which ribs the said faceplate maybe fastened in any place along theirlength by means ofset-screwsj bearing against the cross-head. Upon the face-plate J acenter plate, K, with two arms, k, is secured by means of bolts 7;,whose heads are inserted Through the center of the plate K and thesleevelc a shaft, M, passes, having a bevel-gear wheehm, fastened tooneofits ends,audabevelgear wheel, m, to its other end, and by thesewheels the collar L is kept upon the sleeve h and the shaft is alsoprevented from longitudinal movement. The arms lcofthecenter plate, K,are provided with bearings k through which a shaft, N, is passed. Thisshaft N is provided with two collars, a, fastened by means of pins n tothe shaft, one of said collars being immediately above and the otherbelow the bearings k Between the bearings a bevel-wheel, a is fastenedto the shaft N, so thatitalso gears into the bevel-wheel m of the shaftM. The collars a have inner conical surfaces, n, into which thetriangular shanks 0 of fiat cutters O are fitted. These cutters 0 havesimilar shanks 0 at both ends, and collars a similar to those, a, areloosely fitted upon the shaft 'N, and firmly clamped upon the cutters Oby 'means of nuts 11. on the threaded ends a of the shaft N.

The inner conical surfaces, of, of the collars n and a may be groovedfor the purpose ot'embedding a portion of the shanks 0 of the cuttersinto said collars, and thus holding the cutters very firmly, and makingthem capable of resisting the greatest strains of the machine withoutbeing displaced. The bevelwheel m gears into another bevel-wheel, p,fastened by means of a pin, 12, to a shaft, P. This shaft]? passesthrough the bearing L, and through a similar upper bearing, Q, whichlatter is, by means of a sleeve, q, and arm g secured to a standard, It,upon the bar E. p The upper part of the shaft P is provided with alongitudinal groove, 1), and a looselyfitting bevel-gear, p which iscaused to revolve, with the shaft 1? by means of a straight key, 1),fastened in the bore of the wheel and fitting the groove 19 The wheel prests upon the bearing Q, and thus maintains its normal position. Intothe bevel wheel 12 another bevel-wheel, q, on ahorizontal shaft, Q,gears. The shaft Q revolves in the sleeve q, and is provided withsuitable pulleys, Q which in practice are driven by means of a belt from'the line-shafting of the shop. By this means the connection between thepulley-shaft Q and the cutter-shaft N'is maintained, while thecutter-shaft may be moved horizontally or vertically, or have itsinclination changed to any suitable angle. In the drawings two similarcutter-bars and their operating mechanisms are shown, one only of whichis described, while both are lettered similarly. This is done with aview of illustrating the general arrangement of the same upon a frame,A, common to both, without intending to confine my invention to anygiven number of such cutter-bars and mechanisms, as one, two, three, ormore outter-bars with their operating mechanisms may be employed on onemachine. When a revolving motion of the stone is preferred to thereciprocating" motion imparted by the table A, a round table, A (seeFigs. 3 and 4,) is secured upon the shaft B, after thetable A has beenmoved out of the way, as indicated in said figures, and the pinion b hasbeen removed fromv its shaft to give place for the table A In order toprevent the stone from slipping upon the table A dowel-pins a areprovided fastened at any desired point by means of a set-screw, 15. Tothis slide athreaded handwheel nut,t is secured between two arms, tthereof, and a'screw, passes loosely through said arms and screws intoan inner thread of the hand-wheel t In the screw it a longitudinalgroove, P, is formed, and a steady-pin, t, of one of the arms t enteringgroove t prevents the screw from turning. On the lowcr'spherical end, i,of the screw t, a self-leveling foot-washer, d", is loosely fitted andbears upon the revolving stone X.

The construction and arrangement of the clamp T is such that it can beadjusted over the shaft B, so that the screw 15*? may stand in line withsaid shaft B, and thus the washer d, after being screwed down upon thestone X by means of the hand-wheel nut 15*, will revolve concentricallywith stone X and shaft B, while the screw remains stationary. Onerevolving table may be provided for each cutter-bar.

In Figs. 1 and 2, a stone-slab, X, is shown clamped flat to the table A,and the cutterbar N vertical thereto. This is not however always done,as for certain kinds of shaping or molding it may be necessary tooperate the cutter-bar at an inclination, or even in ahorizontal'position, in which latter case the stone slabs may befastened in a more or less upright position, and thus two such slabs maybe operated upon at the same time. In the said Figs. 1 and 2, and inFig. 5, the wheel 0 is shown in gear with the wheel N, which indicatesthat the reciprocating table A is operated by the power of theline-shafting.

The cutters O or finishing-tools may be so adjusted that both can beused when the table is movingforward or backward; or they may beadjusted right and left handed, so as to be used when the table is beingmoved in the appropriate direction. The cutter-bar, as Well as p thetable, is therefore adapted to forward and backward movements by meansof ordinary counter-shaftin g (connected with the pulleys c and Q drivenfrom the line-shafts by straight and crossed belts.

I do not limit myself to any number of cutters 0 between the collars na, as one, two, three, or more cutters will be used according to thequality of stone being cut and work being done. the cutters 0 will varyin accordaucewith the design of work to be done upon the stone, andcutter-bars might be provided with suitable appliances for. holding adrill, chisel, or suitable tool, and the' same operated so as to cutholes or mortises or countersinks in the stone.

Operation When a stone slab is to be provided with straight molding itis by means of one or more clamps,-D,fastened upon thereciprocatingtable A, so that the edge to be finished overhangs the edgeof the table. The cutter-bar N is provided with the requisite cutters,and, by means of the hand-wheel g and the therewith-connected mechanism,is moved at a proper elevation with respect to the stone slab. Thisdone, the cutter-bar is moved to ward the stone slab by means of thehandwheel 2" and its mechanism; and, finally, the pulley Q is started bymeans of the ordinary The shape of the cutting-edges of p belt-shippinglever attached to thedriving-pulley on the counter-shaft. By 'means ofthe hand-wheel c the table A and the stone slab X are moved toward therevolving cutters O. This movement is continued until the operator findsthat he can safely apply the running power of the shop to thefeed-motion of the stone slab, when he, by means of the lever 0 andbevel-wheel, 0 connects the operating mechanism of the table A with thepulley 0 This pulley c is now set in motion inthe ordlnary way, and thestone slab is finished entirely by machinery. When the molding of thestone slab is to be serpentine, instead of straight,a templet of woodhaving the desired outlines may be used, and upon it the stone slab isplaced. While the cutters O shape the stone slab, the lower collar n is,by means of the hand-wheel t", caused to bear against the serpentineoutline of the templet, and the molding of the stone slab will presentthe desired outline. When circular or more or less circular molding isrequired the table A is moved back sufticiently to allow a round table,A, to be secured to the shaft B, from which the pinion b has beenpreviously removed. No templet will be necessary for a trulycircu'larslab; but for elliptic or serpentine molding or edging a templet may beused in the same manner as when used with the reciprocating table. Withthe use of the round revolving table the clamp Tis employed forfastening-the stone.

This clamp is moved from its extreme (idle) table are used. I have,however, illustrated the practicability of employing two cutter-bars,two revolving tables, and one reciprocating table in the same machine;but while one reciprocating table of appropriate length may suffice forall cases, the number of revolving tables and cutter-bars may be variedaccording to the requirements of the shop.

What I claim as my invention, and desire to secure by Letter Patents, is

1. In a machine for executing ornamental work in stone, the combinationof the feed mechanism for operating the table which supports the stone,clamp for holding the stone, the revolving adjustable cutter-bar,provided with shaping-cutters, the mechanism for adjustin g thecutter-bar with its cutters in vertical, horizontal, and inclinedpositions with respect to the stone-supporting table, and the mechanismfor operating the cutter-bar and cutters while the bar is standing ineither of said positions, substantiallyas and for the purpose described.

2. In a machine for executing ornamental work in stone, the combinationof a movable table which supports the stone,clamp for holding thestone,arevolvingadjustablecutter-bar, N ,provided with cutters,and thefixed pulleystandard R, shaft Q for pulley Q gear-wheels m and p,sliding shaft P, swinging bearin gs L Q, gears 11 and q, slide E slidingplate J, shaft M, and gear-wheels m and a, substantially as and for thepurpose described.

3. The combination,with the revolving cutter-bar N, having stone-shapingcutters, and with the shaft B,which sets the stone-supporting table inmotion, of the power-shaft 0,

gears b o ,and clutch device (3 and thehandshaft C,provided with thegear 0, and handwheel 0 0 whereby the stone may be fed either by poweror hand, substantially as and for the purpose described.

4:. The combination, with the stone-supporting table, of a clamp, avertically adjustable slide, a longitudinally adjustable center plate,and the vertically revolving cutter-bar having cutters set transverselyto it, and applied upon a turning plate which is adjustableconcentrically with the shaft carrying the wheel which revolves the barand cutters, substan- 5o tially as and for the purpose described.

5. The combination of a stone-supporting table provided with suitableclamps, a revolving cutter-bar, N, provided with cutters at both itsends, and hung in bearings of an adjustable center plate, K, shaft M,and bevel- Wheels n m, substantially as and for the purpose described.

6. In a stone-ornamenting machine, the combination of the hand-screwsFand L, the guide H, the slide E sliding support J, revolving cutter-barand cutters, a stone-supportin g table, mechanism for adjusting thecutter-bar and cutters, mechanism for operating said cutter-bar andcutters from a fixed pulley, mechanism for operating thestone-supporting ta-. ble, and adjustable clamps having self-levelingwashers, substantially as and for the purpose described.

DAVID SI-IORTSLEEVE.

Witnesses:

SIDNEY W. RoWELL, J. G. PEASE.

